Vegetarian Roasted Corn Chowder with Sweet Potatoes

Ingredients: vegetable stock (may contain the following: onions, leeks, mushrooms, tomatoes, garlic, beets, celery, carrot, ginger, fennel bulb, herbs and/or spices), roasted corn, sweet potato, Yukon Gold Potatoes, half & half(milk, cream), onion, red pepper, roasted green chilies, cornstarch, unsalted butter, Tabasco sauce (vinegar, red pepper, salt), salt, spices